ABUNDANCES OF IODINE, TELLURIUM AND URANIUM IN METEORITES

Journal Article · Sun Jul 01 04:00:00 EDT 1962 · Geochim. et Cosmochim. Acta

DOI:https://doi.org/10.1016/0016-7037(62)90035-2· OSTI ID:4818341

Goles, G G; Anders, E

Neutron activation analysis was employed to determine the abundances of 1, Te, and U in seven bronzite and hypersthene chondrites, three enstatite chondrites, and two carbonaceous chondrites. On the basis of twenty-three analyses, the mean abundances in ppm for the three groups were: iodine, 0.040, 0.17, and 0.27; tellurium, 0.51, 2.1, and 1.9; uranium, 0.013, 0.0I1, and 0.017. In meteoritic iron (four analyses), these abundances covered a wider range, i.e., 11 to 320, 17 to 90, and <0.15 to <0.6 ppb, whereas five analyses of troilite gave 24 to 3600, 1200 to 5000 and 3.5 to 17 ppb. These data indicate that Te, and to a lesser extent I, are chalcophile in iron meteorites. In chondrites, I and Te are strongly correlated, and appear to reside in the same phase, tentatively identified as CaS or MgS. Four of the meteorites in the present study were previously analyzed by von Fellenberg. His values are found to be uniformly too high by factors of 5 to 30. It seems likely that most of the data in his fundamental study of the geochemistry of iodine are systematically too high by comparable factors. (auth)

• Research Organization: Univ. of California, La Jolla
• NSA Number: NSA-16-025623
• OSTI ID: 4818341
• Journal Information: Geochim. et Cosmochim. Acta, Journal Name: Geochim. et Cosmochim. Acta Vol. Vol: 26
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACTIVATION ANALYSIS
CALCIUM SULFIDES
GEOCHEMISTRY
GEOLOGY, MINERALOGY, AND METEOROLOGY
IODINE
IRON SULFIDES
MAGNESIUM SULFIDES
METEORITES
MINERALS
NEUTRONS
QUANTITATIVE ANALYSIS
QUANTITY RATIO
TELLURIUM
TROILITE
URANIUM